Control system for an automobile engine with automatic transmiss

Details Control system for an automobile engine with automatic transmiss Control system for an automobile engine with automatic transmiss

1990-05-14

1991-10-08

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Fuel injection system

123339, 74873, F02D 4108

Patent

active

050544500

ABSTRACT:
An internal combustion engine which has an automatic transmission and an intake air control system for causing an increased quantity of intake air to be introduced into the internal combustion engine when the automatic transmission shifts from its neutral range to its drive range, is controlled by a control system that includes fuel increasing apparatus and a fuel injection control apparatus. The fuel increasing apparatus causes an increased quantity of fuel to be introduced into the internal combustion engine according to the increased quantity of intake air, and the fuel injection control apparatus causes fuel injection at the increased quantity of fuel to begin at a timing prior to increasing the quantity of intake air when the automatic transmission shifts from the neutral range to the drive range. This prevents the air to fuel ratio from becoming lean and slowing down the engine after the shift.

REFERENCES:
patent: 4750386 (1988-06-01), Bowers et al.
patent: 4825829 (1989-05-01), Abe
patent: 4838223 (1989-06-01), Tanabe et al.
patent: 4841447 (1989-06-01), Hayashi et al.
patent: 4870933 (1989-10-01), Mizuno
patent: 4883034 (1989-11-01), Yashiki et al.
patent: 4903660 (1990-02-01), Sogawa
patent: 4914982 (1990-04-01), Ito et al.

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